ANSI/ASA S12.12 1992 Edition, January 27, 1992
American National Standard Engineering Method for the Determination of Sound Power Levels of Noise Sources Using Sound Intensity
Includes all amendments and changes through Reaffirmation Notice , September 5, 2012
Additional Comments: SAME AS ASA 104
Published By:Acoustical Society of America (ASA)
This standard gives engineering methods for determining in situ sound power using sound intensity measurements on a measurement surface enclosing a source. It provides guidelines on the acoustical environment, including ambient noise, the measurement surface enclosing the source, and the number of measurements on the surface.
This standard does not include specification of instruments or calibration procedures. It is not limited to any one technique of intensity measurement.